[qnetjoe]

When it come to frames, your number one enemy is impulse (force x time). Even you most violent collision inside of first cam be modeled by

F = (2*(M*∆V))/t + M

So when design a frame you need to consider ways to maximize the time over which the impulse occurs. This reduces the force applied and thus the stress in the element. Bumper are just one method to reduce the total force acting on a frame. Rubber Cushioned Pillow Block are another.

I recommend using iso clipping inside of your cad package to check to see the effect that impulse has on your frame.